Home / 811,852.08-1,120,907.16-506,050.80

Finding the Fourth Proportional to 811,852.08, 1,120,907.16 and 506,050.80

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Solution

The fourth proportional to 811,852.08, 1,120,907.16 and 506,050.80 is: 698,693.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,852.08 : 1,120,907.16 = 506,050.80 : x
  2. Step 2: Convert to fraction form
    811,852.08/1,120,907.16 = 506,050.80/x
  3. Step 3: Cross multiply
    811,852.08x = 1,120,907.16 × 506,050.80
  4. Step 4: Simplify right side
    811,852.08x = 567,235,965,043.73
  5. Step 5: Solve for x
    x = 567,235,965,043.73/811,852.08
  6. Step 6: Final answer
    x = 698,693.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.